CWDM Multiplexer and Demultiplexer module (passive) for up to 4 duplex fiber connections, also recommended for interconnecting MediorNet frames. CWDM connection with one LC Duplex Singlemode. The 4 CWDM duplex fiber links must be connected via CWDM Single Mode SFPs 1270nm; 1290nm; 1310nm; 1330nm.Insertion Loss max. 1.4dB. SR11 SmartRack housing for up to 4 modules in one SR-1 frame. All connections on the same front panel